A coupokation



Dec. 15, 1925 1,565,798

E. R. DIL'LEHAY ET AL PROCESS of PACKING ASPHALT Filed Oct. 9. 192.4

M/VVNTQRS BYM M Pumas Dec. 15, 1925 UNITED STATES r 1,565,798 PATENT OFFICE.

IDWARD B. DILLIHAY AND ALAN B- LUIINB, OI WYOIING, OHIO, ASSIGNOBs Tim RICHARDSON COMPANY, 01 LOCILAHD, 0310, A CORPORATION OF OHIO.

P300888 OI PACKING ASPHALT.

muse... fled emu: a, 1m. semi Io. 10,104.

To all whom it may concern.-

Be it known that we,

, HAY and Ana): R. LUKENS, citizens of the United States, and residents of W oming, in the county of Hamilton and tate of Ohio, have invented a certain new and useful Process of Packing Asphalt, of which the followin is a full, clear and exact description, m erence being had to the accomnying drawing, forming part of this speciation.

Our invention relates to means for packaging asphalt for shipment and use.

The requisite for a package of asphalt is that itcan be conveniently packed, shilp and at the point of use can be readi removed from the package for melting own.

Asphalt when prepared is usually piped from the kettles, and ured into barrels'or drums. These are bul y and thus very hard to handle on a building by a contractor, for example, and also it is a mean job to strip away the wood or metal from the asphalt, the containers being almost always destroyed. i

I It is our object to package asphalt 'bypouring it direct into a carton which carton 'fied mass therein, a

- {tion 0 can be conveniently'shi pad with the solidind on' the job can be easily transported and the carton stripped away from the asphalt. j' out this object, we find that "we must provide some sort of a coating for I the carton, which is within the range ewnomy for so cheap. a product, and which is eflective' under a wide variety of condis tions, such that in veryl not break down, and t cause it to disintegrate, and which will not 'so strongly adhere to the carton and the asphalt, that in removing the carton from.

In carryi hot weather, it will at moisture will not the asphalt, large pieces of the fibrous halt will "be likely to burn, setting fire to t e asphalt as it melts, or if it is permeated with moisthre,

it will cause a violent foaming, which. is

- highly unsatisfactory and often dangerous.

Amongother things, we-have worked out a coating for the carton material which will permit the asphalt to be. uredin when ot, and after it has cool to a solid, will .Y'

Enwaan ,R. Drnuiany easy flow at say 300 degrees to the rectan lar thecarton are left on the asphalt? wi This latter condition is bad,. bec'ause. the -paper stock sticking to the black is of a lnbricati -'sanie color as aspha the nature; although lea; of a lubricate awa internally, leaving most of it adherent to t e asphalt and some of it to the carton, the mam tendency being that the film comes away. from the carton more'readily than from the asphalt, the internal strength of the film being less than its adherence to the carton.

We have also investigated the limits of temperature of asphalt, which can be placed into one of our cartons without danger of breaking down. the coating, and to gain greatest safety with mass pouring and coolmg we provide 'preferabl for pumping the asphalt where its nature does not rmit of as we find that from around 350 degrees and u our coating, as eommerciall prepared W1 i not prevent penetration. us by rovidmg a film or coating to the carton, w ich is not strongly adherent and flowin the asphalt into the carton at a viscosity which will not penetrate such a coat we 0- yide a shipping package for as is without the drawbacks no Inthe drawing: j Flgure 1 1s a perspective viewof one of ourpackages. I Figure2 is a section taken through a filled package. Y Figure 8 is taken through the carton, prior to filling. In our process we. first prepare cartons with an inner coating of particular-mature,

and permit the said coating to dry. .We

specifically pointed alt w ich We accomplish our objects by those certam steps and using those instrumentalities ,to be hereinafter more out and claimed.

a section on a larger scale have shown a carton 1, which is the usual shipping case, and can readily be adap)ted 116 to carry around pounds of asphalt.

s ape the carton,-itis well adap to paeklnginacar and for assist the others in 'rvi a rectangular she even where t e as ha t is in a parstoring, in ,which case the several cartons Y tial y, melted condition as to exposure to w The coating? informed of a dusty material, a binderand a filler. Lamp black or (iron oxide which are both a dusty, finely divided material, will form the body. Lamp quality and of the iron oxide is of no I ing quality. We use the oxide orlamp black, whichever can be obtained most advanta ously.

y preference we add to the lamp black or iron oxide, a body of finely divided clay, which is an accepted coating for barrels and drums in which asphalt is stored, but will not work on paper due-to absorption and other causes. The clay forms with water an excellent base for the coating.

We'also use a body of commercial pulverized lime, or some readily available talc, to give permanence to the film used m cpatmg the paper. The action of lime or talc 1n this regard is similar to its action in plaster coating materials, acting to make the mass harder and to kee it from checking and chippin away, an reducing its porosity or penetra ility, although the tale may also have a lubricating quality.

In one successful embodiment, we use equal parts lamp black, lime and clay, and mix slowly into the mass enough water to form a thick paste, which we then coat on the carton stock, or on the inside of the finished carton, permitting the coating to dry thorou hly, after which the cartons are ready for we use is 180 parts clay,40parts fine talc, 82 parts Princes brown iron oxide: (parts are by weight), as in the first formula water is used as the fluid element.

In filling'we preferably pump the asphalt 3 at a temperature below easy flowing temperature for asphalt used in building construction, say between 300 degrees. to 325 degrees Fahrenheit. The cartons may be set side by side and the asphalt pumped through a suitable nozzle, direct into the cartons, whereupon they may be removed to storage space ror cooling and hardening, bein ac ed up closely against each other. e d that if the coohngoi the cartons is done individually, that t of the asphalt when flowed into the cartons, is not so great an essential, but due to storage possibilities, it is not ractical to have an individual cooling of t e packages.

The drying of the carton when coated is not bound by definite limits. With the second formula and normal factory atmosphere,

- ten minutes drying will often be enough to avoid foaming upon insertion of the asphalt.- A prolonged exposure of the coated carton, i. e., more than say three hours, may lead to the film being jarred away in spots during the filling operations. The hot asphalt at the viscosity to be found at the temperatures given, probably drives the moisture of a film which is not too damp, out into a carton, and a certain degree of moisture is found to be desirable to hold the film against rupture. Also a certain amount of moisture cools the surface of the asphalt against the paint and retards penetration therein. The

asphalt within, the coating e ling. Another formula which e temperature to the asphalt and a coating memes cartons should be of unsized stock so far as quickly stripped away from the block of were through the middle, aving some adherent to the asphalt and some adherent to the carton walls.

We wish to stress articularly the use of a dusty material held together in a permanent body in a fairly thick coating with or without the viscous condition of the asphalt upon filling, as the essential features of our invention. The lime or talc, and clay, or other cementitious substance, are added features to form the pasty consistency and retain the coating when dry enough in a proper condition of permanence and partial impenetrability.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent, is

1. A process of preparing asphalt for shipment which consists iin'formiim a coating in a carton having a body of finely divi ed mineral matter of dusty nature held in ing the asphalt directly into the carton,-

whereby the carton acts as a mold and'a shlpping case, and the coating will prevent the paper of the carton from adhering to p shipping case, said asphalt being flowed into the carton at a temperature which results in viscosity thereof sufficient to prevent penetration of the coating.

a 3. A process of preparing asphalt for shipment which consists in coating the carton with a material which-when dry and the asphalt has been poured into it and solidified will upon stripping away the carton, leave a portion of the coating adherent on the paper of the carton, and then flowing the asphalt into the carton, whereby the carton acts as a mold and shipping case combined.

splitting, as it whereby the carton act's as a mold and a v 4. A process of preparing asphalt for.

ing in a carton ing a clay and water base, a filler to impart permanence and a dusty shipment which consists in forming a coatfinely divided mineral pigment element,

pasty form by suitable additions, and fioweliminating enough ofthe water by drying, to avoid foaming, and then flowing the asphalt into thacarton, for the purpose described.

7 ten, for the purpose described.

6. A process'of preparing asphalt 'for shipment which consists 1n forming a coatmg in a carton having a elay and water base, a filler to impart permanence and a "ust y finely divided pigment element, elinimating enough of the water by dryin to avoid 0 into the carton, at a ,viscosit suflicient to prevent penetration through t e coatin 7. A process of shipment which conslsts in forming a loosely coherent filmas a coating in a carton, and flowing asphaltinto the carton at a viscosity insuflicient to -penetrate through. the coating into the carton.-

UKENS aming, and then flowing the asp alt into the carton, for the purpose descri preparing asphalt for' page R. 'DILLEHA 

